Pipenet revamp
-Removed the pipenet network datum, now it will all be done with the pipeline datum
-All atmos pipes and machines will always have a pipeline datum
-Moved the valves to the binary subtype and the portable connectors to the unary subtype
-The pipe vents (who were barely used in three spots of the map) are removed, the map slots will replaced with outlets
-Fixes some bugs of pipenet disconnection, mostly on explosions
-Cleaned a bit the copypaste of construction.dm of pipes
-Removed the ID restrictions of digital valves and the frequency (both unused)
Merge branch 'master' of https://github.com/tgstation/-tg-station into PipenetRevamp
Map update for the pipe revamp, for the different path types.
Merge branch 'PipenetRevamp' of https://github.com/Aranclanos/-tg-station into Aranclanos-PipenetRevamp

Conflicts:
	_maps/map_files/tgstation.2.1.3.dmm
	code/ATMOSPHERICS/atmospherics.dm
	code/ATMOSPHERICS/components/portables_connector.dm
Merge branch 'Aranclanos-PipenetRevamp'
Merge pull request #5885 from Cheridan/master

Conflict Fix of #5638